Bolt.



H. B. & G. L. STEINHOUSE. y

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1,028,795. Patented June 4, 1912.

im r...Th E E E 4of Illinois, have invented a new and UNITED STATESPATENT OFFICE.

HARRY B. STEINHO'US AND CLARENCE L. STEINHOUSE, O F CAIRO, ILLINOIS.

BOLT.

Specication of Letters Patent.

Application filed December 1, 1910. Serial No. 595,025.

To all whom it may concern: v

Be it known that we, HARRY B. STEIN- HOUSE and CLARENCE L. STEINHOUSE,citizens of. the United States, and residents of Cairo, in the county ofAlexander and Sate proved Bolt, of which the following is a full, clear,and exact description. The invention is an improvement in bolts forsecuring together two or more parts, one of which is wood, or such othermaterial into which a lag screw may be threaded.

The invention has in view a bolt which, when applied, will not-workloose or pull from the timber in which it is placed, making itespecially adapt-able for securing freight car grab irons, ladderrungs,"splices, etc. To this end the bolt isprovided with wood screwthreads for a substantial'length of its body adjacent to the head, andwith' the outer end portion of the body reduced in diameter andscrew-threaded to receive screwing.

' being secured together at the splice by a similar fra tion.

number of our improved bolts; Fig. 2 1s a ent-ary section, showing oneof the bolts 1n position preparatory toscrewing it into the timbers; andFig. 3 is a section through one side of a freight car, showing a grabiron applied thereto with-bolts constructed in accordance with ourinvenn The bolt is madeof any required size to suit conditions, andcomprises a body-5 and a head 6. The portion of the body adjacent to thehead and for a substantial length of the bod is provided with wood screw.threads such threads, for example, as are commonly placed on a lascrew. The outer end portion of the body o the bolt is reduced indiameter and is threaded. as indicated at 8 to receive a nut 9. This endofthe bolt body is alsopreferably split centrally. and longitudinallyfor a subst-antial distance, which .is for the purpose of expanding thebolt after the nut has been applied and tightened. The expansionv ofAthis bifurcated or split portion of the bolt may be accomplished by anysuitable instrument, such as a' cold chisel, which is driven between thedivided portions, bending them to the opposite sides of the` nut, asshown in Fig. 1. With the boltthus applied itis not likely to work looseas long as the ltimber into which it is threaded remains sound, and evenafter this .takes place, the bolt cannot be pulledout,

which makes it especially suitable for applying such devices as grabirons and ladder rungs to freight cars, where it is desired to eliminatethe element of risk so far as possible. j

We have shown for convenience of illustration the bolt applied t-o thesplice between two timbers, and also as securing a grab iron to afreight car. It is, however, to be understood that the bolt can be usedwith advantage in numerous other relations, and that the same can bemodied within the scope of the appended claims ,without departing from'the' scope of the invention.

Having thus described our invention, we claim as new and desire tosecure by Letters Patentz i l. A bolt for securing objects in contactwith each other, having a head at one end forengaging one of the objectsand provided with wood screw threads extending from the head forkthegreater portion of its length, the diamt-er of the remainder of the boltbeing approximately equal to the diameter of the body of the saidthreaded portion and provided with screw threads to receive a nut forengaging the other object, the end of the reduced portion of the boltbeing split longitudinally.

2. The combination with two wooden r`members having registeringapertures, t-he apertures being of the SallieA sizejtoform a bore ofuniform diameter, of a headed bolt in the boreJ with its head againstone member, said boltJ being provided' With Wood In testimony whereof Wehave signed our threads extending from the head Hfor the namesrto thisspecification in the presence of 1Q greater portion of its length andscrewing two subscribing Witnesses.

i into the said members, the remainder. of the HARRY B. STEINHOUSE.

bolt being slightly reduced and yprovided l CLARENCE L. STEINHOUSE. withscrew threads, and a nut on the said Witnesses: f

reduced and threaded end and engaging the e HARRY LfSERB-IAN, othermember. g ELMER E. COMINGS.

